dells professional series and ultrasharp series both feature pretty thin bezels. the options are pretty endless too on the size you want. wait for a good sale, and jump on some. i picked up 2 dell P2211H for $139 each on sale (they are $279 regular). they are 1080p monitors, LED back lit and they can do portrait out of the box because of the stand it uses. i currently run 1 portrait and 1 landscape at work and they work great. the ultrasharps will be alot more since they are IPS displays, so it really depends on how much you want to spend. if you wait for the right time, you can get 3 P2211H monitors for just over 400 bucks. free shipping from dell always helps too

are we talking < 8mm bezel on the side? That's the type of thin I'm looking at. My current Samsung E2320 has 19mm bezel, which is 38mm gap between screens, it looks sort of thin, but isn't once you put a 2nd monitor next to it.